Have been predominantly a Firefox user for god knows how many years now.
Every now and again though I move away from it due to it having issues with things stopping working or just freezing my system.
I did actually move to MS Edge for a while when it first launched and quite liked it, but due to MS essentially discontinuing support for it, I have been using the new Dev version of Edge which incorporates Chrome into it.
For some reason never really got on with Chrome. Tried it a few years ago, lived with it for a few months but never really thought it to be anything special as it lacked a lot of features I was used to in Firefox, but this new version of Edge works as a good back up at least.
I do find though that using crap cleaner from time to time does help Firefox a lot.